32 KB Flash, 4 KB SRAM, LQFP48 Package Overview The LPC1224FBD48 is an Arm® Cortex®-M0 based microcontroller for embedded applications featuring a high level of integration and low power consumption. The LPC1224FBD48 operates at CPU frequencies of up to 30 MHz and includes up to 48 kB of Flash memory and 4 kB of data memory. The peripheral complement of the LPC1224FBD48 includes a DMA controller, a CRC engine, one Fast-mode Plus I2C interface, one RTC, one SSP/SPI interface, two UARTs, four general purpose timers, a 10-bit ADC, two comparators, and up to 39 General Purpose I/O (GPIO) pins. The LPC1224FBD48 is available in LQFP48 package. Features Cortex-M0 processor, running at frequencies of up to 30 MHz Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC) Serial Wire Debug System tick timer Up to 4 kB SRAM Up to 48 kB on-chip flash programming memory In-System Programming (ISP) and In-Application Programming (IAP) Includes ROM-based common division routines Crystal oscillator with an operating range of 1 MHz to 25 MHz 12 MHz Internal RC (IRC) oscillator trimmed to 1 % accuracy PLL allows CPU operation up to the maximum CPU rate Clock output function with divider Real-Time Clock (RTC) Micro DMA controller with 21 channels CRC engine Serial interfaces: I2C, UART, SSP/SPI Programmable high-current output drivers (16 mA) on four pins Up to 39 General Purpose I/O (GPIO) pins with programmable pull-up resistor All GPIO pins can be used as edge and level sensitive interrupt sources Four general purpose counter/timers Windowed WatchDog Timer (WWDT) One 8-channel, 10-bit ADC Two highly flexible analog comparators Three reduced power modes: Sleep, Deep-sleep, and Deep power-down Processor wake-up from Deep-sleep mode via start logic using 12 port pins Brownout detect with three separate thresholds Power-On Reset (POR) Integrated PMU (Power Management Unit) 3.3 V power supply Target Applications eMetering Lighting Industrial networking Alarm systems White goods LPC122x Block Diagram